The presentation is focused on showing tools to edit structure data on files that were already uploaded to Wikimedia Commons. The plan is to show different tools and describe what they are good for and what disadvantages they have. Also shows what progress in adding Structured Data to Wikimedia Commons. Presentation is focused on mass editing - how to mark hundreds of images.

What kind of knowledge is needed to fix errors collected on Special:LintErrors. In what way the whole process will influence your community. How it will change the level of accessibility for impaired users. What policies your wiki can introduce to prevent users from introducing more errors? Based on experience from pl.wiki and de.wiki